1. Sidewall Height Difference: The "65" and "60" in the tire size represent the aspect ratio, which is the ratio of the tire's height to its width. A 195-65 R15 tire has a 65% aspect ratio, meaning its sidewall height is 65% of its width. On the other hand, a 195-60 tire has a 60% aspect ratio, resulting in a shorter sidewall. This difference can impact the tire's overall diameter and rolling circumference.
2. Rolling Circumference: The rolling circumference is the distance traveled by the tire with each full rotation. When changing tire sizes, it's crucial to ensure that the rolling circumference of the new tires is within an acceptable range specified by your vehicle manufacturer. If the rolling circumference differs significantly, it can affect speedometer accuracy, odometer readings, ABS, and traction control systems.
3. Clearance Issues: The smaller sidewall height of the 195-60 tires may result in reduced clearance between the tires and the vehicle's suspension components, such as the wheel well, brakes, or fenders. This can potentially cause rubbing or interference, especially when the suspension is compressed or when turning.
4. Ride Quality: The shorter sidewall of the 195-60 tires can affect the overall ride quality of the vehicle. These tires may provide less cushioning, resulting in a harsher ride. Additionally, the reduced sidewall height can impact handling characteristics and cornering stability.
5. Speed Rating and Load Index: Besides the tire size, you must also pay attention to the speed rating and load index of the tires. These factors determine the tire's maximum safe speed and load-carrying capacity. Make sure the 195-60 tires have the appropriate speed rating and load index that meet or exceed the original tire's specifications.
Given the potential differences mentioned above, it's strongly recommended that you consult your vehicle's owner's manual or check with a trusted tire professional before attempting to substitute one tire size for another. They can provide expert guidance based on your vehicle's specific requirements to ensure safety, performance, and compatibility.
